.navbar {
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  padding: 0.5rem 4rem; /* 减少上下padding */
  height: 85px; /* 设置固定高度 */
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.navbar-content {
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: #333;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-title::before {
  content: '🤖';
  font-size: 1.8rem;
}

.navbar-subtitle {
  font-size: 0.9rem;
  color: #666;
  margin-left: 1rem;
  font-weight: 500;
}

.navbar-actions {
  display: flex;
  gap: 1rem;
}

.navbar-button {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.navbar-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

@media (max-width: 768px) {
  .navbar-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .navbar-subtitle {
    margin-left: 0;
  }
}
